Dr. Jiro Toshiwa is a human scientist working at the Ascension Project. With a reputation of being a charming and easy-going young man, Jiro is of American and Asian descent and is described as good-looking and fit. Despite an age difference of nearly twenty years, he's in a non-serious relationship with Kahlee Sanders. Though Hendel Mitra is suspicious of him, Jiro is one of the few people Gillian Grayson appears to trust and feel comfortable around.